We run our ap's by 4 wism. How can Iachive that all traffic from wlan-clients is forwarded to a router and not to other wism's in the same subnet?

The log of one of our dsl-routers shows a lot of this messages:*Oct 9 11:11:21 MEST: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to down*Oct 9 11:13:49 MEST: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up*Oct 9 11:14:5...